159423497 has 4 divisors (see below), whose sum is σ = 159472656. Its totient is φ = 159374340.

The previous prime is 159423461. The next prime is 159423521. The reversal of 159423497 is 794324951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159423497 - 2⁸ = 159423241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159423427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19343 + ... + 26324.

It is an arithmetic number, because the mean of its divisors is an integer number (39868164).

Almost surely, 2^159423497 is an apocalyptic number.

It is an amenable number.

159423497 is a deficient number, since it is larger than the sum of its proper divisors (49159).

159423497 is an equidigital number, since it uses as much as digits as its factorization.

159423497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49158.

The product of its digits is 272160, while the sum is 44.

The square root of 159423497 is about 12626.3017942706. The cubic root of 159423497 is about 542.2307095047.

The spelling of 159423497 in words is "one hundred fifty-nine million, four hundred twenty-three thousand, four hundred ninety-seven".